We analyzed an 6.7-year span of data from a rotating torsion-pendulum containing ≈1023 polarized electrons to search for the "wind" arising from ultralight, axionlike dark matter with masses between 10−23 and 10−18 eV/c2. Over most of this range we obtain a 95\% confidence limit Fa/Ce≥1×1015 eV on the axionlike decay constant.
@article{arxiv.1902.04246,
title = {Constraints on axionlike dark matter with masses down to $10^{-23}$ eV/c$^2$},
author = {William A. Terrano and Eric G. Adelberger and Charles A. Hagedorn and Blayne R. Heckel},
journal= {arXiv preprint arXiv:1902.04246},
year = {2019}
}
Comments
Submitted December 20th, 2018 to PRL; Revised exclusion figure to show stellar and other experimental constraints